新概念英语第一册-语法练习(二)(共5页).doc

精选优质文档-倾情为你奉上新概念英语第一册 语法练习(二)新概念英语第一册学习资料免费下载：新概念英语第一册视频免费下载：新概念英语第一册语法：现在进行时现在进行时表示现在正在进行的动作构成：主语+be动词+动词的现在分词+其它成分We are having lunch.He is reading a book.The dog is running after a cat.The boys are swimming across the river.变疑问句将be动词移到句首Are we having lunch?Is he reading a book?Is the dog running after a cat?Are the boys swimming across the river?变否定句在be动词后面加 notWe are not having lunch.He is not reading a book.Th